An emergency publish is now underway for RMM Managed AV (Mav-BD). This publish (MAV-BD 6.6.18.266) is available for Update & Fresh Install.

Issue Fixed:

The security agent did not install on Windows systems, after the latest Windows update containing KB4580347 or KB4579311. The signature verification process caused compatibility issues between the product and the operating system.

Original Post: https://status.n-able.com/2020/10/15/rmm-managed-av-mav-bd-experiencing-issues-with-recent-windows-update/